JP2007537480A - Improved glasses with mount and lens interconnected by a strap - Google Patents

Abstract

The described glasses have a mount (2), a plurality of lenses (3) and strap-like interconnection means for holding these lenses in the mount. This strap-like interconnection means can at least partially surround the lens and is attached to the mount. The strap-like interconnecting means comprises a single strap segment (11) with at least two lengths (11a, 11b) in the shape of segments having different cross sections for each lens. The outer shape of the cross section of one length is defined by the first outer portion (12a) and the second outer portion (12b), and this first outer portion is held in the groove (9) of the mount. The second contoured portion can engage an outer edge groove (10) formed in the thickness of the lens. The outer shape of the cross section of the other length portion substantially has the shape of the second outer shape portion.

Description

  The present invention relates to an improved spectacle having a mount and a plurality of lenses interconnected by a strap according to the preamble of main claim 1.

  In the technical field of reference, it is possible to produce spectacles in which a plurality of lenses are held by strap-like interconnection means on a mount having a lens-holding rim that completely or partially surrounds these lenses. Are known. Typically, an elastic and flexible strap, usually made of nylon, is provided. The strap is positioned to enclose a cross-section of the lens edge and engage a corresponding hole in the mount, and can be extended to securely connect the mount and the lens to each other.

  Such a known type of mount for eyeglasses was extended to surround each lens with a mounting member arranged to partially surround the lens and the remaining edge portion of the lens A connecting strap and coupling means provided for attaching the strap in the region on both sides of the lens, in particular in the region of the lug and in the region of the central bridge supporting the nose. Further, for example, an elastic gasket formed by another different second linear member is sandwiched between the mount member and the edge of the lens facing the mount member, so that the contraction is possible between the lens and the mount. As a result of the extension of the connecting strap, damage to the lens that may occur when locking the lens to the mount can be prevented.

  The main object of the present invention is to provide spectacles having a mount and a lens interconnected by a strap, wherein the mounting of the lens on the mount reduces the number of required parts and thus the required combination action, It is easy and easy to do. Another object is to simplify the structure of the mount arranged to receive the lenses interconnected by the strap and to limit the provision of coupling means to the mount for attaching the connecting strap with relative tension or Is to remove.

  Yet another object is that similar strap-like interconnecting means work for mounting lenses of different dimensions or styles, thus simplifying the manufacturing cycle by better standardization of the required components. Yes.

  These and other objects, which will become apparent below, are achieved by the present invention with glasses manufactured according to the claims.

  Further features and advantages of the present invention will become apparent from the following detailed description of an exemplary preferred embodiment, by way of non-limiting example, with reference to the accompanying drawings.

  In the referenced figures, reference numeral 1 generally indicates the glasses manufactured according to the present invention. The spectacles have a mount 2, and a pair of lenses 3 is connected to the mount by strap-type interconnection means. The mount 2 has a pair of mount members 3a, each of which extends in an arc in the region of the eyebrow bow. These members 3a are connected to each other by a central bridge 4 arranged in a central region that supports the nose. Further, these members are connected at their opposite side ends to respective support arms 5 for hinges 6 that pivotally support the mounting arm 7. These pivot supports 6 are also known by the term “lag” in the relevant technical field. The member 3a is further provided with respective pads that support the nose and are shown generally at 8 in the figure.

  The mount member 3a is formed so as to surround these portions along the shape of the corresponding portion of the edge of each lens 3. Further, each mount member 3a is formed with a groove 9 that extends along the entire length of the mount member 3a and is opened at a position facing the thickness of the lens. The groove 9 is also opened at both end faces thereof.

  Further, as will be clarified in the following description, a groove 10 formed so as to be connected to the corresponding mount member 3a by the strap means is formed in the thickness portion of each lens 3 along the entire outer edge of the lens. Is formed. The groove 10 preferably has a cross-sectional shape of an arc arch or, as an alternative, another shape that can be deformed as a whole.

  The strap-type interconnecting means is formed for each lens 3 by, for example, a plastic material or an elastically stretchable material having a similar property of elasticity and flexibility, especially a material having a metal material. It has a single segment strap 11 which is preferably done. For this purpose, the strap 11 is preferably molded by using an injection molding technique or by overheating or extruding nylon in a coining die.

  The segments of the strap 11 have at least two segment-shaped length portions 11a and 11b extending in the extending direction and having different cross sections. More specifically, the shape of the cross section of the first length portion 11a is defined by a first outer shape portion and a second outer shape portion indicated by 12a and 12b, respectively. These outer parts are connected to each other in a limited intermediate cross-sectional area so as to remind them of an approximately eight-shaped shape (FIG. 12) and to give at least a similar structure to the entire cross-section.

  The outer shape of the strap-shaped second length portion 11b substantially has the shape of the second outer shape portion except for the connection region described above, and preferably has a circular shape (FIG. 16).

  Preferably, the cross-section of the strap-shaped length portions 11a and 11b is constant in the longitudinal extension direction of the corresponding length portion.

  In order to connect each lens 3 to the mount 2, a strap-shaped first length portion 11 a that is held by being engaged with the respective groove 9 of each member 3 a is provided. Engaging the two outer portions 12b with the lens groove 10 provides the entire strap segment 11 extending around the outer edge of the lens. By appropriately extending the strap 11 and coupling it to the mount 2, a lens lock to the mount is obtained as will be described in detail below.

  In order to attach the strap segment 11 to the mount 2, each mount member 3a is provided with a coupling means, and this coupling means has a pair of proximity holes 13a and 13b penetrating the corresponding member 3a. is doing. These holes are preferably formed in the member 3a near the end of the member close to the central bridge 4 and extend in the axial direction at a position facing the lens thickness 3.

  In order to connect the lens to the mount, the strap segment 11 is first inserted into the groove 9 by a corresponding length 11a extending from the end of the mount member 3a proximate to the side lug 5. The strap segment is then almost completely engaged with the groove by relative sliding between the groove 9 and the strap 11, so that the strap is held in the groove. Such a holding operation is ensured by the shape of the groove 9 in which the inner hole 9a of the groove is widened with respect to the groove opening 9b in the cross section, so that the strap can slide in the sliding direction of the strap. Is prevented from coming off the groove in a direction perpendicular to the groove. In the next step, the strap segment 11 cut to the size of this length according to the determination of the appropriate length of the second length portion 11b is coupled to the pair of holes 13a, 13b, thereby mounting the mount member 3a. To be attached. As clearly shown in FIG. 4, one end of the strap-shaped length portion 11b is inserted into the hole 13a from the inside to the outside of the mount member, and further inserted into the hole 13b from the outside to the inside. Is done. Thus, the free end of the strap-shaped length 11 b remains partially received in the groove 10.

  In the next operation, the lens 3 is positioned on the corresponding mount member 3a by engaging the corresponding and facing portion of the lens groove 10 with the first strap-shaped length portion 11a. The second length portion 11b is extended and engaged with the remaining portion of the groove 10 to be locked. The strap-shaped first length portion 11a is held between the mount and the lens, so that the area where the lens is supported by the mount can be reduced. This is accomplished without the risk of damaging the lens while locking the lens by stretching the strap 11 due to the elastic properties that occur to better fit the lens (fragile material) to the mount (rigid material).

  The relative lock between the strap-shaped first length portion 11a and the mounting member 3a is caused by friction generated between the mutual contact surfaces of the groove 9 and the strap-shaped length portion 11a held in the groove. Note that it is caused by stress. To hold the strap 11 in the groove 9, a groove cross-section with a preselected geometric profile is given and designed as a substitute for each other and is shown in FIGS. It should be noted that the basic type of cross section provides a circular structure of the groove inner hole 9a with lips 9c defining the groove opening 9b and facing each other. 9 shows a modification of the outer shape of the groove 9 having a quadrilateral structure with rounded vertices, FIG. 10 shows a modification having a substantially triangular structure, and FIG. 11 shows the above structure. The modification obtained from the combination is shown. For each preselected structure of the section of the groove 9, the corresponding cross section of the strap-shaped first length 11a is such that the length engages the groove 9 by a substantial fit of the shape. It will be understood that they are given to ensure that they do. If the groove opening 9b with respect to the dimension of the groove inner hole 9a is more restrictive, the strap 11 can be placed in the groove even if the strap is deformed in the longitudinal direction as can be predicted below due to the effect of stretching. It is possible to hold effectively.

  For each lens, a single strap 11 is provided (whether open or closed, as will be described below), and each lens specializes only one such lens. It will be understood that it is attached as described above with reference to.

  In the main variant of the invention, details similar to those of the previous examples are given the same reference numerals, and the strap segment 11 is closed ring as clearly shown in FIG. It is molded into a shape. In this variant, a cross-section of a strap-shaped first length 11a similar to that of the previous example is given, these cross-sections being given, for example, in FIGS. A cross section corresponding to the groove 9 (FIGS. 8 to 11) formed in the mount member 3a is provided.

  In a closed ring structure, the strap 11 is preferably attachable to the mount without providing coupling means with through holes, as described in the previous example. In fact, by properly selecting the ring-shaped dimension, the strap tension can be obtained with the force required to lock the strap to the lens without the need for an auxiliary means to attach the strap itself. Can do. Further, based on the elastic properties of the strap, a suitable ring length can be provided to also allow locking of lenses with different gauges (dimensions). Thus, preferably a similar ring of straps can be used to attach lenses of different styles and dimensions, thus simplifying the manufacturing and combination cycle of eyeglasses.

  A strap that has both an open state and a closed state allows the bevel to be applied to the inside of the nose area of the wearing part or the outline of the lug area, so that the strap can be removed after it is coupled to the mount. More attention should be paid to preventing this.

  Finally, it is pointed out that the glasses according to the invention can be obtained with mounts made of various materials, in particular plastic materials, but not limited thereto.

  Thus, the present invention achieves the proposed objective and provides multiple advantages over known solutions.

  The main effect is that, in fact, the construction of the mount that can receive the lens is facilitated in the known solution by means of spectacles manufactured according to the invention, and at the same time the operation of the cycle in which the lens is combined with the mount. The fact is that it is easy.

  Another advantage is that the structure of the connecting strap, which can be manufactured as a single segment strap with different cross-sections, is simpler, resulting in fewer components and lower manufacturing and combination costs. is there.

  Yet another advantage is that it makes it possible to effectively connect lenses of different styles and dimensions with strap connection means, so that the components required for the range of manufactured glasses can be reduced overall.

1 is a front view of eyeglasses manufactured according to the present invention. FIG. It is a side view of the spectacles of FIG. FIG. 3 is an enlarged view of a cross section taken along line III-III in FIG. 1. FIG. 2 is a diagram according to FIG. 1 of eyeglasses according to the invention, provided with a lens during the mounting process. FIG. 5 is an enlarged view of details of the glasses indicated by arrow C in FIG. 4. FIG. 3 is a detail view of the present invention. FIG. 7 is a diagram of a variation of the invention shown by the details of FIG. 6. FIG. 4 shows a portion of another embodiment of the details of the glasses shown in FIG. 3. FIG. 4 shows a portion of another embodiment of the details of the glasses shown in FIG. 3. FIG. 4 shows a portion of another embodiment of the details of the glasses shown in FIG. 3. FIG. 4 shows a portion of another embodiment of the details of the glasses shown in FIG. 3. It is the figure cut | disconnected along the AA line of FIG. It is the figure cut | disconnected along the AA line of FIG. It is the figure cut | disconnected along the AA line of FIG. It is the figure cut | disconnected along the AA line of FIG. It is the figure cut | disconnected along the BB line of FIG.

Claims (20)

A mount (2), a plurality of lenses (3), and strap-like interconnection means for holding the lenses on the mount, the strap-like interconnection means comprising the lens (3); In spectacles that can be at least partially enclosed and is attached to the mount (2) to hold the lens to the mount;
The strap-like interconnecting means comprises, for each lens (3), a single strap segment (11) comprising at least two lengths (11a, 11b) in the shape of segments having different cross sections. The outer shape of the cross section of one length part (11a) is prescribed | regulated by the 1st external shape part (12a) and the 2nd external shape part (12b), and this 1st external shape part (12a) Can be held in each groove (9) of the mount, and the second outer portion (12b) is in an outer edge groove (10) formed in the thickness portion of the lens. The strap-shaped length portion (11b) can be engaged, and the strap-shaped length portion (11b) corresponds to the lens (3). To engage the groove (10) As such, eyeglasses, characterized in that it substantially has the shape of the second profile section (12b).   The strap segment (11) has a first length portion (11a) and a second length portion (11b) extending in the extending direction, and each length portion has a longitudinal extending direction. The spectacles of claim 1 having a constant cross section at.   The first length portion (11a) of the strap segment (11) has a cross section defined by the first outer portion (12a) and the second outer portion (12b), and It is held in the groove (9) and is held between the mount (2) and the lens (3) by being engaged with the groove (10) on the outer edge of the lens, and the strap segment ( Means for coupling 11) is provided on the mount (2) so as to attach the mount, and thus the strap segment is placed under a preselected degree of tension on the lens (3). 3. Glasses according to claim 1 or 2, held on a mount (2).   The means for coupling includes, for each lens (3), at least a pair of holes (13a, 13b) penetrating the mount (2) at a position facing the thickness portion of the lens (3). One end of the strap-shaped second length part (11b) is inserted into the one hole from the inside to the outside, and then the other side from the outside to the inside. Inserted into a hole, the free end of the second length (11b) is received in the groove (10) at a position between the mount and the lens (3). Item 3 glasses.   The mount has a pair of mount members (3a), each mount member being capable of at least partially surrounding a respective lens (3) and near a central region supporting the nose. 5. A pair of holes (13a, 13b) are formed in each of the mounting members in a central region that supports the nose. Glasses.   The spectacles of any one of the preceding claims, wherein the strap segment (11) is made of a plastic material.   The spectacles of any one of the preceding claims, wherein the strap segment (11) is made of nylon.   The spectacles of any one of the preceding claims, wherein the strap (11) is formed of an elastically stretchable material.   The spectacles according to any one of the preceding claims, wherein the strap segment (11) is manufactured by injection molding.   The spectacles according to any one of the preceding claims, wherein the strap segment (11) is manufactured by overheating in a coining die.   The spectacles according to any one of the preceding claims, wherein the strap segment (11) is manufactured by an extrusion process.   Any of the preceding claims, wherein the groove (9) is formed in the corresponding mount member (3a) around the corresponding lens (3) along the entire extending direction of the mount member. Or 1 glasses.   A groove according to any one of the preceding claims, wherein the groove (9) has a cross-section shaped to receive a corresponding part of the cross-section of the strap segment (11) by a substantial conformity. glasses.   The groove (9) has a transverse cross section at the entrance opening (9b) of the groove so as to prevent the strap (11) from coming out of the groove in a direction intersecting the longitudinal direction of the groove. 5. Glasses according to any one of the preceding claims, having a groove inner hole (9a) which is widened against.   In the groove (9), the strap segment (11) is inserted into one end of the groove (9) and is relatively slid in the longitudinal direction of the groove between the strap segment and the groove. The spectacles according to claim 14, thereby being engaged with a corresponding outer shape of the strap segment (11).   A cross section of the strap (11) having a predetermined length defined by the first length portion (12a) and the second length portion (12b) has a substantially 8-shaped shape. Glasses according to any one of the preceding claims.   The spectacles of any one of the preceding claims, wherein the second outer portion (12b) has a substantially circular shape.   The spectacles of any one of the preceding claims, wherein the strap segment (11) is shaped like a closed ring.   The outer shape of the strap (11) is deformed by inclining one end or both ends in the length direction of the mount in which the strap is held so as to prevent the strap from being detached from the mount. Glasses according to any one of the preceding claims.   20. The pair of spectacles of claim 19, wherein the deformation due to the tilt is effected in a lug area of the mount or an opposite nose area.

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